Westport Fuel Systems (XTER:WPI) Cyclically Adjusted PS Ratio: (As of Aug. 12, 2026)

Author: Vera Yuan Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

XTER:WPI Westport Fuel Systems Inc XTER:WPI
48 GF Score
Price €1.40
GF Value €0.76
! 7 Warning Signs
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What is Westport Fuel Systems Cyclically Adjusted PS Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Westport Fuel Systems  (XTER:WPI) Cyclically Adjusted PS Ratio Explanation

Compared with the regular PS Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PS Ratio smoothed out the fluctuations of revenue during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PS Ratio should give similar results to regular PS Ratio.


Westport Fuel Systems Cyclically Adjusted PS Ratio Related Terms


Westport Fuel Systems Cyclically Adjusted PS Ratio Historical Data

* Premium members only.

The historical data trend for Westport Fuel Systems's Cyclically Adjusted PS Ratio can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Westport Fuel Systems Cyclically Adjusted PS Ratio Chart

Westport Fuel Systems Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PS Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.07 0.36 0.33 0.21 0.10

Westport Fuel Systems Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted PS Ratio Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.17 0.14 0.10 0.11 0.00

XTER:WPI vs ORLY, AZO, GPC: Cyclically Adjusted PS Ratio Comparison

For the Auto Parts subindustry, Westport Fuel Systems's Cyclically Adjusted PS Ratio, along with its competitors' market caps and Cyclically Adjusted PS Ratio data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


Westport Fuel Systems Cyclically Adjusted PS Ratio vs Vehicles & Parts Industry

For the Vehicles & Parts industry and Consumer Cyclical sector, Westport Fuel Systems's Cyclically Adjusted PS Ratio distribution charts can be found below:

* The bar in red indicates where Westport Fuel Systems's Cyclically Adjusted PS Ratio falls into.


XTER:WPI
48GF Score
Westport Fuel Systems Inc XTER:WPI
Cyclically Adjusted PS Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Westport Fuel Systems Cyclically Adjusted PS Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PS Ratio takes the Revenue per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/S calculation. Because it considers this 10-year average, it's often referred to as the CAPS Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PS Ratio.

Westport Fuel Systems's Cyclically Adjusted Revenue per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, Westport Fuel Systems's adjusted Revenue per Share data for the three months ended in Jun. 2026 was:

Adj_RevenuePerShare=Revenue per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=0.132/133.5265*133.5265
=0.132

Current CPI (Jun. 2026) = 133.5265.

Westport Fuel Systems Quarterly Data

Revenue per Share CPI Adj_RevenuePerShare
201609 4.549 101.765 5.969
201612 4.289 101.449 5.645
201703 5.094 102.634 6.627
201706 4.725 103.029 6.124
201709 4.285 103.345 5.536
201712 3.299 103.345 4.262
201803 3.931 105.004 4.999
201806 5.222 105.557 6.606
201809 4.248 105.636 5.370
201812 3.991 105.399 5.056
201903 4.854 106.979 6.059
201906 5.460 107.690 6.770
201909 4.754 107.611 5.899
201912 3.812 107.769 4.723
202003 4.459 107.927 5.517
202006 2.183 108.401 2.689
202009 3.815 108.164 4.710
202012 4.980 108.559 6.125
202103 4.364 110.298 5.283
202106 4.182 111.720 4.998
202109 3.728 112.905 4.409
202112 4.231 113.774 4.966
202203 3.982 117.646 4.520
202206 4.419 120.806 4.884
202209 4.198 120.648 4.646
202212 4.299 120.964 4.745
202303 4.474 122.702 4.869
202306 4.570 124.203 4.913
202309 4.222 125.230 4.502
202312 -9.424 125.072 -10.061
202403 4.144 126.258 4.383
202406 0.749 127.522 0.784
202409 0.255 127.285 0.268
202412 0.403 127.364 0.423
202503 0.391 129.181 0.404
202506 0.625 129.892 0.642
202509 0.079 130.287 0.081
202512 0.093 130.366 0.095
202603 0.114 132.262 0.115
202606 0.132 133.527 0.132

Add all the adjusted revenue per share together and divide 10 will get our Cyclically Adjusted Revenue per Share.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

Is Westport Fuel Systems (XTER:WPI) Overvalued in 2026?

Based on GuruFocus' analysis, Westport Fuel Systems stock appears to be overvalued. The current stock price of €1.40 is trading 84.2% above its estimated GF Value™ of €0.76.

Key valuation signals for XTER:WPI:

  • Cyclically Adjusted PS Ratio:
  • GF Value™: €0.76 vs. price of €1.40 (84.2% above fair value)
  • GF Score™: 48/100 with 7 warning signs

No single metric tells the full story. See the XTER:WPI stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Westport Fuel Systems Business Description

Address 1691 West 75th Avenue, Suite 101, Vancouver, BC, CAN, V6P 6P2
Westport Fuel Systems Inc is an organization engaged in the engineering, manufacturing, and supply of alternative fuel systems and components for transportation applications. It has three reportable segments: High-Pressure Controls, Heavy-Duty OEM, and Cespira. It derives maximum revenue from Heavy-Duty OEM segment. Heavy-Duty OEM segment's products include HPDI related fuel system solutions and components. Geographically, the company operates in Europe, America and Asia, of which it generates maximum revenue from Europe. It also develops and supplies advanced LPG, CNG, LNG and H2 systems and components for OEM (original equipment manufacturer) D-OEM (delayed oem) and After Market (retrofit market) world-wide.
48GF Score

Get the complete analysis for XTER:WPI

Cyclically Adjusted PS Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€1.40
Price
€0.76
GF Value